COMPUTATION OF VISCOUS-FLOW AROUND PROPELLER-BODY CONFIGURATIONS - SERIES-60 C(B)=0.6 SHIP MODEL

Citation
F. Stern et al., COMPUTATION OF VISCOUS-FLOW AROUND PROPELLER-BODY CONFIGURATIONS - SERIES-60 C(B)=0.6 SHIP MODEL, Journal of ship research, 38(2), 1994, pp. 137-157
Citations number
NO
Categorie Soggetti
Engineering, Civil","Engineering, Marine
Journal title
ISSN journal
00224502
Volume
38
Issue
2
Year of publication
1994
Pages
137 - 157
Database
ISI
SICI code
0022-4502(1994)38:2<137:COVAPC>2.0.ZU;2-6
Abstract
Validation of a viscous-flow method for predicting propeller-hull inte raction is provided through detailed comparisons with recent extensive experimental data for the practical three-dimensional configuration o f the Series 60 C(B) = 0.6 ship model. Modifications are made to the k -epsilon turbulence model for the present geometry and application. Ag reement is demonstrated between the calculations and global and some d etailed aspects of the data; however, very detailed resolution of the flow is lacking. This supports the previous conclusion for propeller-s haft configurations and axisymmetric bodies that the present procedure s can accurately simulate the steady part of the combined propeller-hu ll flow field, although turbulence modeling and detailed numerical tre atments are critical issues. The present application enables a more cr itical evaluation through further discussion of these and other releva nt issues, such as the use of radial- and angular-varying body-force d istributions, the relative importance of turbulence modeling and grid density on the resolution of the harmonics of the propeller inflow, an d three-dimensional propeller-hull interaction, including the differen ces for the nominal and effective inflows and for the resulting steady and unsteady propeller performance. Also, comparisons are made with a n inviscid-flow method. Lastly, some concluding remarks are made conce rning the limitations of the method, requirements and prognosis for im provements, and application to the design of wake-adapted propellers.